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Ulna

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12y ago
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6mo ago

The elbow joint is formed by the articulation of three bones: the humerus (upper arm bone), the radius (one of the two lower arm bones), and the ulna (the other lower arm bone). The humerus fits into a shallow socket on the ulna, allowing for bending and straightening of the arm. The radius bone also plays a role in this joint by rotating around the ulna, allowing for movements such as supination and pronation.

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Q: How do they articulate to form elbow?
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